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### Question

When 16 items are sold at an amount of Rs. 45, a loss equal to the cost of 7 items is incurred. What is the cost of one item?

**A**

Rs. 5.

**B**

Rs. 6.

**C**

Rs. 7.

**D**

Rs. 4.

**Soln.**

**Ans: a**

Let the cost per item be c. Then loss = 7c. So we can write 16c - 45 = 7c. Solving we get c = Rs. 5.